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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Remote processor framework
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Copyright (C) 2011 Google, Inc.
*
* Ohad Ben-Cohen <ohad@wizery.com>
* Brian Swetland <swetland@google.com>
*/
#ifndef REMOTEPROC_INTERNAL_H
#define REMOTEPROC_INTERNAL_H
#include <linux/irqreturn.h>
#include <linux/firmware.h>
struct rproc;
struct rproc_debug_trace {
struct rproc *rproc;
struct dentry *tfile;
struct list_head node;
struct rproc_mem_entry trace_mem;
};
/**
* struct rproc_vdev_data - remoteproc virtio device data
* @rsc_offset: offset of the vdev's resource entry
* @id: virtio device id (as in virtio_ids.h)
* @index: vdev position versus other vdev declared in resource table
* @rsc: pointer to the vdev resource entry. Valid only during vdev init as
* the resource can be cached by rproc.
*/
struct rproc_vdev_data {
u32 rsc_offset;
unsigned int id;
u32 index;
struct fw_rsc_vdev *rsc;
};
static inline bool rproc_has_feature(struct rproc *rproc, unsigned int feature)
{
return test_bit(feature, rproc->features);
}
static inline int rproc_set_feature(struct rproc *rproc, unsigned int feature)
{
if (feature >= RPROC_MAX_FEATURES)
return -EINVAL;
set_bit(feature, rproc->features);
return 0;
}
/* from remoteproc_core.c */
void rproc_release(struct kref *kref);
int rproc_of_parse_firmware(struct device *dev, int index,
const char **fw_name);
/* from remoteproc_virtio.c */
irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
/* from remoteproc_debugfs.c */
void rproc_remove_trace_file(struct dentry *tfile);
struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
struct rproc_debug_trace *trace);
void rproc_delete_debug_dir(struct rproc *rproc);
void rproc_create_debug_dir(struct rproc *rproc);
void rproc_init_debugfs(void);
void rproc_exit_debugfs(void);
/* from remoteproc_sysfs.c */
extern struct class rproc_class;
int rproc_init_sysfs(void);
void rproc_exit_sysfs(void);
#ifdef CONFIG_REMOTEPROC_CDEV
void rproc_init_cdev(void);
void rproc_exit_cdev(void);
int rproc_char_device_add(struct rproc *rproc);
void rproc_char_device_remove(struct rproc *rproc);
#else
static inline void rproc_init_cdev(void)
{
}
static inline void rproc_exit_cdev(void)
{
}
/*
* The character device interface is an optional feature, if it is not enabled
* the function should not return an error.
*/
static inline int rproc_char_device_add(struct rproc *rproc)
{
return 0;
}
static inline void rproc_char_device_remove(struct rproc *rproc)
{
}
#endif
void rproc_free_vring(struct rproc_vring *rvring);
int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
int rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i);
phys_addr_t rproc_va_to_pa(void *cpu_addr);
int rproc_trigger_recovery(struct rproc *rproc);
int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
const struct firmware *fw);
struct rproc_mem_entry *
rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
void rproc_add_rvdev(struct rproc *rproc, struct rproc_vdev *rvdev);
void rproc_remove_rvdev(struct rproc_vdev *rvdev);
static inline int rproc_prepare_device(struct rproc *rproc)
{
if (rproc->ops->prepare)
return rproc->ops->prepare(rproc);
return 0;
}
static inline int rproc_unprepare_device(struct rproc *rproc)
{
if (rproc->ops->unprepare)
return rproc->ops->unprepare(rproc);
return 0;
}
static inline int rproc_attach_device(struct rproc *rproc)
{
if (rproc->ops->attach)
return rproc->ops->attach(rproc);
return 0;
}
static inline
int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
{
if (rproc->ops->sanity_check)
return rproc->ops->sanity_check(rproc, fw);
return 0;
}
static inline
u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
{
if (rproc->ops->get_boot_addr)
return rproc->ops->get_boot_addr(rproc, fw);
return 0;
}
static inline
int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
{
if (rproc->ops->load)
return rproc->ops->load(rproc, fw);
return -EINVAL;
}
static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
{
if (rproc->ops->parse_fw)
return rproc->ops->parse_fw(rproc, fw);
return 0;
}
static inline
int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
int avail)
{
if (rproc->ops->handle_rsc)
return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
avail);
return RSC_IGNORED;
}
static inline
struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
const struct firmware *fw)
{
if (rproc->ops->find_loaded_rsc_table)
return rproc->ops->find_loaded_rsc_table(rproc, fw);
return NULL;
}
static inline
struct resource_table *rproc_get_loaded_rsc_table(struct rproc *rproc,
size_t *size)
{
if (rproc->ops->get_loaded_rsc_table)
return rproc->ops->get_loaded_rsc_table(rproc, size);
return NULL;
}
static inline
bool rproc_u64_fit_in_size_t(u64 val)
{
if (sizeof(size_t) == sizeof(u64))
return true;
return (val <= (size_t) -1);
}
#endif /* REMOTEPROC_INTERNAL_H */
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